Arcum's Weathervane 
Artifact
$0.18 #28474 0.29 31.4 years
, 
: Target snow land is no longer snow., : Target nonsnow basic land becomes snow.Click a line or tag to filter
Cards similar to Arcum's Weathervane expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Arcum's Sleigh74%
$0.22↑#288350.06↓31.4 years
", : Target creature gains vigilance until end of turn. Activate only during combat and only if defending player controls a snow land."
, : Target creature gains vigilance until end of turn. Activate only during combat and only if defending player controls a snow land."
Rime Dryad72%
$0.12↓#316300.00↓31.4 years
"Snow forestwalk"
Melting71%
$0.22↑#321210.12↓31.4 years
"All lands are no longer snow."
Dark Fortress71%
$1.95↑#5391↑0.08↓0.3 years↓
": Add 
or 
. Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Training Compound71%
$1.14↑#7026↑0.220.3 years↓
": Add or 
. Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Hidden Lair71%
$1.73↑#6429↑0.05↓0.3 years↓
": Add 
or . Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Quirion Druid70%
$1.28↑#265980.13↓29.7 years↓
", : Target land becomes a 2/2 green creature that's still a land."
, : Target land becomes a 2/2 green creature that's still a land."
Gleaming Bastion70%
$1.42↑#6009↑0.09↓0.3 years↓
": Add 
or . Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Gathering Place70%
$1.07↑#6757↑0.09↓0.3 years↓
": Add or . Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."